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Power Management Products [Hotswap, Power Sequencing, System & Battery Management] ® X80140–Series, X80130–Series, X80120–Series Quad, Triple, Dual Voltage Supervisor and Time Sequencing Controllers Product Highlights Complete power sequencing solution that can be used for a wide variety of applications that can sequence voltage sources and resolve system timing issues. These devices integrate voltage monitors, voltage references, oscillatorfree selectable time delays, voltage good enable drivers, fault detection register, Power-On Reset, Manual Reset, general purpose EEPROM, and a SMBus serial port. Intelligent power sequencing provides programmable delays and remote voltage status monitoring via the SMBus. Key Features • Voltage Monitors. The X80140-Series (four voltage monitors), X80130-Series (three voltage monitors), X80120-Series (two voltage monitors), integrated voltage references and comparators that are set to different voltage trip points between 0.9V to 5V. Each device has a unique set of voltage trip points to trigger time delays. • Time-base Sequencers. Time delay circuits with SMBus selectable time delay allows between 100 milliseconds to 5 seconds. Timeout pin indicators are provided. Internal oscillator and dividers are integrated • System management Functions. Integrated Power-On Reset with selectable delay, manual reset, and Fault Detection Register allow for additional power status or control of each timer and voltage supervisor via the SMBus • 2Kbit of EEPROM for general purpose use to store timing information, manufacturing information, and other calibration data Benefits • Allows for flexible power sequencing designs that support both parallel and relay sequencing configurations. • Multiple devices can be cascaded to support more complicated time-based sequencing designs • System management functions include Power-On Reset with Selectable Delay and Manual Reset to provide CPU host components control over power readiness • Functionally the devices can be used in a wide range of applications • See Application Note: AN166 and others Description These devices are voltage supervisor/sequencers with up to four built in voltage monitors. This allows the designer to monitor up to four voltages and sequence up to five events. Low voltage detection circuitry protects the system from power supply failure or “brown out” conditions, resetting the system and resequencing the voltages when any of the monitored inputs fall below the minimum threshold level. The RESET pin is active until all monitored voltages reach proper operating levels and stabilize for a selectable period of time. Five common low voltage combinations are available, however, Xicor’s unique circuits allow the voltage monitor threshold to be reprogrammed for special needs or for applications requiring higher precision. A manual reset input provides debounce circuitry for minimum reset component count. Activating the manual reset both controls the RESET output and resequences the supplies through control of the ViGDO pins. The device have 2kb of EEPROM for system configuration, manufacturing or maintenance information. This memory is protected to prevent inadvertent changes to the contents. Pin Configuration* V4GDO V4MON V3GDO V3MON V2GDO X80140/1/2/3/4 V CC NC MR 20 19 18 17 16 1 15 2 14 3 5mm x 5mm 13 4 12 5 11 6 7 V P A0 V2MON V SS 8 9 10 DNC A1 SDA WP RESET V1GDO V1MON SCL *X80120 and X80130 Series have similar pinout New & Featured Products See Product Family Tree on page 2-14 www.xicor.com 1–21
® Power Management Products [Hotswap, Power Sequencing, System & Battery Management] X80140–Series, X80130–Series, X80120–Series Quad, Triple, Dual Voltage Supervisor and Time Sequencing Controllers Block Diagram RESET V CC MR V SS POR Reset Logic and Delay Control and Fault Registers Bus Interface SDA SCL WP A0 A1 V P VMON Logic OSC Divider EEPROM 2kbits V SS V1MON V2MON V3MON V4MON V SS V REF1 V REF2 V REF3 V REF4 + – + – + – + – Reset 4 4 Select 0.1s 0.5s 1s 5s Delay1 Delay2 Delay3 Delay4 Delay circuit repeated 4 times V SS V1GDO V2GDO V3GDO V4GDO *X80140 Shown Ordering Information Part Number Ordering Voltage Monitor Delay Trip Point # of Programmable Power-On Master Fault Interface Code Delay Time Delay Reset with Reset Detection Monitor 1 Monitor 2 Monitor 3 Monitor 4 Timers Delay Dual Sequencer X80120 X80120Q20I 4.5V (4.48-4.52) 0.9V (0.88-0.92) 2 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80121 X80121Q20I 3.0V (2.98-3.02) 0.9V (0.88-0.92) 2 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus Triple Sequencer X80130 X80130Q20I 4.5V (4.48-4.52) 3.0V (2.98-3.02) 0.9V (0.88-0.92) 3 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80131 X80131Q20I 4.5V (4.48-4.52) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 3 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80132 X80132Q20I 3.0V (2.98-3.02) 2.25V (2.23-2.27) 1.7V (1.68-1.72) 3 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80134 X80134Q20I 3.0V (2.98-3.02) 0.9V (0.88-0.92) 0.9V (0.88-0.92) 3 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus Quad Sequencers X80140 X80140Q20I 4.5V (4.48-4.52) 3.0V (2.98-3.02) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80141 X80141Q20I 4.5V (4.48-4.52) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80142 X80142Q20I 3.0V (2.98-3.02) 2.25V (2.23-2.27) 1.7V (1.68-1.72) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80143 X80143Q20I 3.0V (2.98-3.02) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus X80144 X80144Q20I 2.25V (2.23-2.27) 2.25V (2.23-2.27) 0.9V (0.88-0.92) 0.9V (0.88-0.92) 4 100ms, 500ms, 1 sec, 5 sec Y Y Y SMBus 1–22 www.xicor.com
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Page 3 and 4: Product Family Selection Trees and
Page 5 and 6: CPU Supervisors, System Management,
Page 7 and 8: ® CPU Supervisors, System Manageme
Page 17 and 18: Power Management Products [Hotswap,
Page 19 and 20: ® Power Management Products [Hotsw
Page 21 and 22: ® Power Management Products [Hotsw
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Page 27 and 28: ® Signal Conditioning/Calibration
Page 41 and 42: Signal Conditioning/Calibration and
Page 63 and 64: Voltage Reference Products ® X6000
Page 71 and 72: ® Voltage Reference Products X6400
Page 73: ® Data Conversion Products X79000

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